With HDR image, you can create stunning reflections and lighting in few minutes. No need to tweak the lights for hours, to get realistic lighting.This product comes with three versions of HDR (*.hdr) image. Full 360 degree panorama (1600x3200 pixels) for spherical environment, horizontal cross (3200x2400 pixels) for cubic environment and smaller 360 degree panorama (200x100 pixels) with reduced saturation for best lighting.